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Vertical axis fan brake system and brake method, and wind power generation system

A braking system and vertical axis technology, applied in wind turbines, control of wind turbines, machines/engines, etc., can solve problems such as waste of braking energy

Inactive Publication Date: 2016-11-09
XUJI GRP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a vertical axis fan braking system to solve the problem of waste of braking energy during braking in traditional braking systems

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  • Vertical axis fan brake system and brake method, and wind power generation system
  • Vertical axis fan brake system and brake method, and wind power generation system

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Embodiment Construction

[0022] The present invention will be described in further detail below with reference to the accompanying drawings.

[0023] The wind power generation system provided by the present invention includes a vertical axis wind generator (referred to as a vertical axis fan), and a braking system, which is used for braking the vertical axis fan. In addition, it should be noted that since a general wind farm includes more than one wind generator, the braking system is not only applicable to a single wind generator, but also can be used in a wind farm composed of multiple wind generators. Since the vertical axis wind turbine belongs to the conventional technology, it will not be described in detail here, and the braking system will be described in detail below.

[0024] The braking system includes a control device and an energy storage device.

[0025] Wherein, the control device is the core control unit of the braking system, which can be realized by a specially set controller, or by...

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Abstract

The invention relates to a vertical axis fan brake system and brake method, and a wind power generation system. The wind power generation system comprises the vertical axis fan brake system, wherein the brake system comprises an energy storage device, a first control switch and a second control switch; the first control switch is arranged on a transmission line between the electric energy output end of a vertical axis fan and the electric network in series; the electric energy output end of the vertical axis fan is connected with the energy storage device through the transmission line; and the second control switch is arranged on the transmission line between the electric energy output end of the vertical axis fan and the energy storage device in series. In the braking process of the vertical axis fan, the energy storage device is utilized to store the energy recovered by the braking of the vertical axis fan into the energy storage device. The brake method can recover the braking energy into other occasions, and thus, is green and environment-friendly; and therefore, the energy generated in the braking process can not be wasted.

Description

technical field [0001] The invention relates to a vertical axis fan braking system, a braking method and a wind power generation system. Background technique [0002] According to the direction of the rotation axis, the wind turbine can be divided into two types: horizontal axis and vertical axis. In order to resist strong typhoons, fans usually need to have a braking (brake) function. A reliable and effective braking system can ensure the smooth braking of the fan, and play a role in safety protection of the fan. [0003] Currently widely used horizontal axis fans, horizontal axis generators can adopt yaw or pitch in strong winds to reduce wind energy capture and thus reduce braking torque. The inherent high speed and low torque characteristics of the horizontal axis fan make the design of the braking system of the horizontal axis fan of the same power level relatively simple. Therefore, when the horizontal axis wind turbine is braking, the braking is realized by pitchin...

Claims

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Application Information

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IPC IPC(8): F03D7/06
CPCF03D7/06F05B2260/903Y02E10/74
Inventor 田素立赵瑞杰邢珊珊李朝锋王艳领代兴华李红刚
Owner XUJI GRP
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